Sim800 hardware design v1.05

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SIM800_Hardware Design_V1.05 56 2014-03-25
6. Electrical, Reliability and Radio Characteristics
6.1 Absolute Maximum Ratings
The absolute maximum ratings stated in following table are stress ratings under non-operating conditions.
Stresses beyond any of these limits will cause permanent damage to SIM800.
Table 38: Absolute maximum ratings
Symbol Min Typ Max Unit
VBAT - - 4.5 V
Peak Current 0 - 2.0 A
VBUS - - 30 V
I
I
* - - 8 mA
I
O
* - - 8 mA
These parameters are for digital interface pins, such as keypad, GPIO, I2C, UART, LCD and PCM.
6.2 Recommended Operating Conditions
Table 39: Recommended operating conditions
Symbol Parameter Min Typ Max Unit
VBAT Power supply voltage 3.4 4.0 4.4 V
T
OPER
Operating temperature -40 +25 +85 °C
T
STG
Storage temperature -45 +90 °C
6.3 Digital Interface Characteristics
Table 40: Digital interface characteristics
Symbol Parameter Min Typ Max Unit
V
IH
High-level input current 2.1 - 3.1 V
V
IL
Low-level input current -0.3 - 0.7 V
V
OH
High-level output voltage 2.4 - - V
V
OL
Low-level output voltage - - 0.4 V
* These parameters are for digital interface pins, such as keypad, GPIO, I2C, UART, LCD and PCM.